How To Paint Rectangles Around Individual Cells Or Rows
Mar 1, 2012
I have a DataGridView (not data bound, not editable) that displays a bunch of data. I want to draw rectangles around some of the blocks of cells to set them apart visually. For example, I want to draw a red border around the block of cells from row 3 colum 2 to row 6 column 3 so that there is a red rectangle around the 8 cells.I've found how to paint rectangles around individual cells or rows, but I can't work out how to do it for a block of cells.
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Jul 1, 2011
I want the user only to be able to select rows and not individual cells in a VB.NET DataGridView. Is there a way to make this happen? I don't see an option for the DataGridView object to control this via properties.
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Oct 16, 2009
Is it possible to change the forecolor if individual cells depending on its value (for instance changing from Navy to Red if negative in currency columns?
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Aug 5, 2010
I have a mature VB6 program that depends heavily on flexgrids for the display.It appears that DataGrids are somewhat of a replacement for flexgrid?I need to update individual cells over and over and I don't see how to address a single cell. Appears to me that most samples are tied to a database which I don't have.If I set up a datagrid that is say 3x3, how do I read and write from and to say the center cell?
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Jun 15, 2011
I am developing an application in vb.net 2008 express edition that displays utility meter information. In one column of datagridview it shows the meter type in numeric code. When the user hovers over the the individual cells in meter type column i want to be able to show more descriptive info on what that numeric code actually means.
As an example the cell in datagridview will show 1254 the actual description for this numeric code is "Landis Gyr Focus AX SD 2S 7.2Kh"
Below is my code so far, every other aspect of application is working except for above.
Public Class Form3
Private Sub dgv1_CellMouseEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgv1.CellMouseEnter
[Code]....
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Mar 27, 2009
Is it possible to give individual cells in a data grid view row different styles such as backcolor, fontcolor etc?
I do not mean giving the whole row a new style, only a specific cell.
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Aug 1, 2008
I am having trouble with automatically filling a table in word from a asp.net app - i use bookmarks in the next top row to determine what data should be inserted into the columns of my tables. However, i am having trouble in getting the individual cells bookmarks and get all the bookmarks from the row instead. This is fine if i have one bookmark in each column as i can use the 3rd bookark and assume that is from the 3rd column, but if i were to have 2 bookmarks in one column, how would i know which column it was that contained the 2 bookmarks?Here is my code that returns all bookmarks for the row even though i am selecting a single cell; and therefore using bookmarks(1) - always the same bookmark(the one in the leftmost
[code]...
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Jun 16, 2010
I wanna paint my DGV cells. One cell has got a date. I wanna compare that cell and system date. How can I do that? And I wanna paint cell that date is less than system date. I wanna codes in VB .NET 2008? I tried this but it paints all rows.
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
If TextBox3.Text = "" Then
Else
If TextBox3.Text < Date.Today Then
DataGridView1.RowsDefaultCellStyle.BackColor = Color.Blue
End If
End If
I wanna cell painting or row painting that value is lower than system date.
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Feb 15, 2012
I have a project that reads a json data and parse it. The program is working properly except that I cannot get its individual rows and view it in separate panels.
[Code]...
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Jan 3, 2012
I would like to copy only the selected rows, but not all cells, only the ones I set in the sub, from one datagridview to another datagridview.
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Jan 28, 2012
I have a datalist in vb web form.How can i get the value in a specific rows and cells of a datalist?I could do it for detailsview but how to do it for datalist?Below is my code for detailsview: Dim selectedCommentAns As String = DetailsView.Rows(0).Cells(1).Text.I tried the same way for datalist but it dont have rows and cells to be selected.[code]
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Jan 6, 2011
I was looking for some code that would change the colors of some rows in my datagridview but I could not get that to work. I have this code which should work but it doesn't, I could not find any replacements. I need to change the color of some rows.
Do While cnt > -1 If datagridorder.Rows(cnt).Cells.Item("DataGridViewTextBoxColumn16").Value.ToString.Substring(datagridorder.Rows(cnt).Cells.Item("DataGridViewTextBoxColumn16").Value.ToString.Length - 5, 5) = "Cease" Then
datagridorder.Rows(cnt).DefaultCellStyle.BackColor = Color.Red
End If
cnt -= 1
Loop
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Sep 20, 2009
How to create a Paint program with all the functions of Microsoft Paint?
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Jul 11, 2011
So I have a code atm that has 2 combo boxes, one to select the make, then it will enable the model, I have 3 model choices, here's code: [code] Once I have selected my model of the car, it takes me to that specific form with a picture of that model, I then want to display individual parts, with individual prices that will add up in a text box above.
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Feb 9, 2011
How can microsoft paint(or any other painting software) be included in a VB.net project? I need to used its functionalities to maipulate jpg and movie file. Is there any ways this can be done on VB.net (or Visual Studio).
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Jul 5, 2009
My main goal is to have an excel spreadsheet that automatically plots the overall success of my stock portfolio over time (% change over time). I've been able to incorporate stock data into my spreadsheet by linking it to the web, but the trouble is the spreadsheet will keep no history of what the previous stock values were, so I can't graph how things change over time. This sounds like it might be too complicated to be built in to excel, so I was wondering if anyone knew how to program this in Visual Basic. Maybe something like this.... If refresh then new cell plus new time stamp. Another possibility would be to have a whole bunch of cells that refresh only once but at longer and longer intervals, e.g.,
[Code]...
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Mar 31, 2011
I have a DataTable and want to connect the cells of one of its columns to cells in some other DataTables.
For example:
DataTable1.Rows(0).Item(2) is connected to DataTable2.Rows(4).Item(6)
DataTable1.Rows(1).Item(2) is connected to DataTable4.Rows(2).Item(3)
DataTable1.Rows(2).Item(2) is connected to DataTable3.Rows(11).Item(4)
...
How can I do this?
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Mar 8, 2010
I am trying to have different types of rectangles. I thought something like this would work, but Rectangle is not a class.
Public Class xRectangle
Inherits Rectangle
End Class
What I wanted this for was to remove a selection rectangle from an existing drawing. I have all of the objects to draw stored in a list and I am trying to remove the selection rectangle without removing the object it is covering.
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Jun 7, 2011
how to flip rectangles in picturebox?
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Aug 9, 2011
How to flip rectangles in picturebox?
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Feb 7, 2009
How to know if two rectangles intersect. i know for polygon center, length, width and angle. i want to fast algorithm for visual basic 2008.
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Feb 7, 2009
how to know if two rectangles intersect i know for polygon center, length, width and anglei want to fast algorithm for visual basic 2008
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Feb 11, 2012
I have made considerable progress on a game I am making, but one of the fundamentals of it relies on collision detection. At the moment, I am using Rectangle.IntersectsWith() to check "collision" between two PictureBoxes, but I don't want everything all square (graphics, etc). So I set about adjusting regions and have ended up with a circular button (from the MSDN example). What I'd like to know is this: Is there any way I can check intersection between any two OBJECTS, not just rectangles? As in, if the rectangle intersects with or is inside the circle in any way then how do I check it programmatically?
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Dec 13, 2011
I just want to draw some lines between the rectangles in vb.net. I used g.drawstring() method to that.
But now, based on a value I just want to change the opacity of the arrow.
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Dec 11, 2009
I have an automated electrical tester, I want to create a type of map file so that way the user can select a subset of devices to test. So basically I want to create a type of grid that the user will be able to highlight specific rectangles in the grid so that way the tester knows to test only those specific locations. To start I want to create a 4X4 grid and each individual rectangle in the grid will contain some coordinate information. Does anyone have a tiny example of how I can draw a 4X4 grid, or any thoughts on the best way to do this? The real final map I will be making will have over 50K devices.
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Feb 2, 2011
Lets say that I've got the coordinates of two Rectangles, they could be right next to each other or have space between them. I need to draw a PolygonHotSpot around the two rectangles (so it will only cover the two rectangles and the space between them). I've come to find that I have to give the coordinates a clockwise order around the entire polygon, rather than around each rectangle (which works fine for a single rectangle).
So given a list of coordinates, is there a way to get them into the order that I need for there to not be any gaps in my PolygonHotSpot?
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Oct 15, 2011
i want to Identify filled rectangles in picture given picture in vb .net.
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Jun 20, 2010
I have a bunch of rectangles simulating players for a football game I'm designing. I want to find out how many "players" are in between two points on the field. I have a start point (a defender trying to locate the ball carrier) and endpoint (the ball carrier). I need the number of other players in between those two points (I have all of their coordinates as well). The more traffic in the defender's field of vision the harder it will be to find the ball.
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May 29, 2010
I have two rectangles; a character and a block. The character is suppose to jump onto the block and then either jump off it or walk off it. I am really getting frustrated with this because I cannot get it to work.
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Apr 13, 2010
I need some help calculating physics after a collision, sort of like rigid body physics but just for rectangles, I don't need them to rotate but only to know the x and y speed they leave each other and the angular velocity etc. the collision with the walls work fine since all I'm doing is reversing the speeds of the rectangles (which is probably the wrong way of doing it) but unfortunately this does not not work for the two rectangles colliding with each other, so can some1 lead me in the right direction as to how I can go about calculating this.
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